This book gives descriptions of all the gecko known species that can be found in the Northern Territory and gives up-to-date distributions for all of them. To lessen the complexities of making an accurate identification of a species, whether by a professional biologist or by people starting out in the field of biology, I provide simple keys. I also hope to show readers the wonderful array of geckos that occurs in the NT, Australia and explain the importance of habitat preservation for these beautiful animals and all our Biodiversity.